Apparatus for producing pulp for paper manufacture.



A. W. CASE APPARATUS FOR PRODUCING PULP FOR PAPER MANUFACTURE.

APPLICATION FILED NOV;28. 1911.

1 ,1 62, 1 35 Patented Nov. 30, 1915.

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A T RNEYQ A.- W. CASE.

APPARATUS FOR PRODUCING PULP roe PAPER MANUFACTURE APPLICATION FILED NOV. 28, 191!- 1 162,1 35 Patented Nov. 30, 1915.

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accompanying drawings,

.3 is a detail ALBERT W. CASE, OF HIGHLAND PARK, CONNECTICUT.

APPARATUS FOR PRODUCING PULP FOR PAPER, MANUFACTURE.

Specification of Letters Patent.

Patented NOV. 30, 1915 Application filed November as, 1911.. Serial No. 662,823.

To all whom it may concern:

Be it known that I, ALBERT WILLARD CASE, resident of Highland Park, in the county of Hartford and State of Connecticut, have invented a new and Improved Apparatus for Producing Pulp for Paper Manufacture, of which th following is a' specification.

My invention relates to the class of devices above named, and the object of my invention, among others, paratus of this class, construction and effective in operation, occupying a minimum amount of space and requiring little attendance and care in its operation.

One form of device embodying my invention and in the construction and use of which the objects herein set out, as well as others, may be attained, is illustrated in the in which- Figure 1 1s a view partially in section and somewhat diagrammatic of an apparatus embodying my invention. Fig. 2 is a detail view, (looking down), in section through a digester embodying my invention and forming part of my improved apparatus. Fig. end view of the rotating core. Fig. 4: is a detail view, partially in section,

of a refining engme embodying my inven-,

tion and forming part of my improvedapparatus. Fig. 5 is a detail view, partially in section, of'one end of a heating engine forming part ofmy improved apparatus and showing my improvement attachedthereto. Fig. 6 is an end view of'the rotating core. Fig. 7 is a detail view showing the angular position of the plates of the digester with respect to the axis of the core.

In the accompanying drawings the numeral 8 denotes a duster of any approved form and construction in which the stock to be transformed into paper is introduced for the purpose of removin'g the dust, dirt and other impurities, and this stock may 'or may not be cut by any suitable apparatus before being introduced to the duster as by means of a traveling apron 9. A traveling apron 10 takes the material from the duster through an opening 11 to. a chute 12 into which water is introduced as means of a pipe 13, this water usually being 1n a hot state.

of a digester 15, the inlet being located at a citizen of the United States, and ais to provide an ap-- extremely simple in .lets. While I have shown the 21 interposed between the outlets and inlets The chute 12 delivers to the inlet .14 I

beating engine 19. From the inlet 18 the material passes through the beating engine to an outlet 20 located at the opposite end and mto a box 21 which delivers to the inlet 22 of a refining engine 23, from the outlet 24 of which it is deliveredto a distributmg vat 25 having a partition 26 dividing the vat into compartments, from each com.- partment of which outlets 27 extend to any suitable point of delivery, gates 28 being em-' ployed to control the delivery to said outboxes 17 and of the machines, this is not absolutely essential to my improvement, as the boxes may be dispensed with and the outlet of one machine may deliver directly to the inlet of another.

The digester, beating and refining engines illustrated and described herein are of usual and well-known construction with the exception of my improved attachments hereinafter to be described. So far as I am aware such machines have not heretofore been arrangedto deliver one directly to another as contemplated by my improvement "for the reason, as I believe, that defects in operation, demonstrated by my experiments, have existed.

In an attempt to associate two or more of the machines as shown herein it was found that the paper stock or material would collect within the shell of the machine near the inlet and about its rotating core, eflectually clogging themachine and causingthe material to ooze out at its end through the opening through which the shaft passes. After equipping the machines with my improved attachment hereinafter described I have found that the several machines may be connected one to the other so that the stock may bevpassed continuously from the duster into the digester, through the beating engine and refining engines'without-trouble,

thus effecting at a single operation the reduction of the stock to its'final pulp form, and withoutrequiring close attention.

In adapting the machines to effectually performthe operations when combined as terior of the shell are omitted at that end I where the angularfeeds travel. In the preferred arrangement I attach two sets of the angular feeds, each set consisting of two angular feeds, each of which is diametrically arranged on the core from the other and the angular feeds in one set being .each located about a quarter of the way around the cylinder from an angular feed of the opposite set, In the preferred form of construction each angular feed consists of a plate outstanding from a base 33 through which bolts extend to secure the angular feed to the core 30. The angular feeds are also arrangeddiagonally to the axis of the core as shown in Fig; 2 of the drawings.

The angular feed as adapted for the refining engine shown in Fig. 4 consists of toes 34 projecting laterally from the plate or web 35, this angular feed being located at the end of the rotating core 36 and on the shaft 37 thereof, the outer edge of this web sloping from the surface of the core to the shaft, as shown in Fig. 4. In the preferred method of arrangement I employ three of these angular feeds which are preferably diagonally arranged with respect to the axis of the shaft, as hereinbefore described with regardto the structure shown in Fig. 2. The angular feed as adaptedfor use in the beating engine 19 is of similar construction to that provided for the refining engine above described, the webs 38 of the angular feeds being fitted'to the sloping edge 39 of the core 19, and being arranged preferably diagonally to the axis of the shaft as hereinbefore described, and secured as by means of bolts passing through toes 40. A core provided with my improved angular feed is found to work satisfactorily and without any clogging of the material in the operation of the machine. As the material enters the inlet it is struck by the angular feeds and immediately thrown against the interior of the shell and carried lengthwise along the shell, during which time it is operated upon by the disintegrating members of the device. This movement of the material lengthwise of the shell is assisted by the diagonal arrangement of the angular feeds with respect to the aXis of the core. When theangular feeds are arrangedin sets, as shown in Fig. 2, the ends of the feeds of one set preferably overlap those of the other set, the angular feeds thus being staggered one with respect to another.

lVhile I have shown and described herein the preferred construction of my improved apparatus, this may be changed to a greater or lesser degree and yet embody the invention, and I do not therefore consider that a device must be constructed in exact accordance with that herein shown and described in order to embody my invention.

I claim 1. A machine for disintegrating paper stock including a number of shells each having an outlet opening and an inlet opening located to receive stock fed from the outlet of another shell, a plural number of said shells each having a core rotatably mounted therein and with feed devices extending in different paths upon said core, the devices uponsome of said cores being located to directly receive stock fed into the inlet opening, and the feed upon other of said cores being located against the end of the core opposite the inlet.

. 2. A machine for disintegrating paper stock and including a shell, an inlet to conduct stock into said shell, a core rotatably mounted in said shell, disintegrating members secured to said core at a distance from said inlet, and feed members located opposite the inlet to first receive and act upon stock passing therethrough, all of said feed members being located in different lines extending lengthwise of the core, said feed members gradually tapering in width in the direction of feed of stock into the shell.

3. A machine for disintegrating paper stock including a shell having an inlet opening thereto, means for introducing stock to said shell, a core rotatably mounted in said shell, feed devices extending in a straight line and in different paths upon said core, some of said devices being located directly to receive stock fed into said inlet opening, a second machine connected with the first machine to receive stock therefrom, said second machine including a shell having an inlet opening thereto, a core of truncated cone shape rotatablyanounted in said shell and with its smaller end terminating near saidinlet opening, and feed devices located against the end of said core and opposite said inlet and located in different lines extending lengthwise of the shell, said devices being also located opposite the inlet to receive stock directly therefrom.

4. A machine for disintegrating paper stock including a shell having an inlet opening thereto, means for introducing stock to said shell, a core rotatably mounted in said shell, feed devices extending in a straight line and in different paths upon said core, some of said ,devices being located to directly receive stock fed into said inlet opening, a second machine connected with the first machine to receive stock therefrom, said second machine including a shell having an inlet opening thereto, a core of truncated cone shape rotatably mounted in said shell and with its smaller end terminating a near said inlet opening, feed devices located against the end of said core and opposite said inlet and located in different lines extending lengthwise. of the shell, said devices \5 bein also located opposite the inlet to receiv stock directly therefrom, and a third machine connected to receive stock from the second machine and having a core and feed v/ devices of similar construction to that of the second machine. 7

. ALBERT V. CASE.

\Vitnesses:

Alrrnt'n B. Ji-zfmxs, Eva L. STUL'GIITUN. 

